Visualization of World Population from 1970 to 2022


Understanding the Data:

The dataset contains population information on 234 different countries and territories within 17 variables:


Start by ensuring that every column is complete and contains no missing values. This can be done by counting the number of instances that occur in each variable column and comparing it with the known length of the dataset.

A quick and easy way to do this is by generating a bar chart.

Since every column contains 234 instances, we can assume there are no missing values in the data.


To better understand the structure of the data, we may wish to know how many countries and territories are being accounted for in each continent. This can also be done using a bar chart by grouping and counting the number of Country instances within each Continent level.


Visualizing the Data:

The data contains two variables which have a clear link to one another as well as a population: Area (km²) and Density (per km²)

Notice:

Notice:


A good starting point for understanding the world population would be by visualizing the most recent 2022 Population.

Notice:

Aside from the current average world population numbers, inspecting average population numbers from the past few decades could help identify any apparent traits. From the data, we can pull the 2020 Population,2010 Population,2000 Population,1990 Population,1980 Population,and 1970 Population numbers and generate similar plots for reference.

Notice:

Notice:

ALso using the 2020 Population,2010 Population,2000 Population,1990 Population,1980 Population,and 1970 Population numbers, we can make visuals for the total world population numbers and see how certain continents and their overall contributions have shifted over time.

Notice:


After looking at each continent as a whole, we can identify which countries and territories have contributed the most and least to the current world population.

Notice:

Notice:

We can try to determine if there are any changes in these rankings by looking at the most and least populated countries and territories of the past 50 years.

Notice:


Since the data contains information on the world population broken down by each country and territory's contribution, it may be easier to visualize each countries impact by viewing the information on a choropleth map. This makes it possible to view the aggregated population data in a geographic way.

Lets start by looking at a choropleth map of the current 2022 Population:

Notice:


We can also view a choropleth map of the world population over the past 50 years and see how the population numbers change over the decades through an animation.

Notice:

Since roughly half of the current world population reside in China, India, and Pakistan, it makes sense to isolate Asia and take a closer look at their changes over the past 50 years.

Notice: